While we are discussing Jeremy Grantham its also worth noting his prediction on the Australian Housing market
"Housing market a 'time bomb', says investment legend"
""The price of housing typically trades about 3.5 times of family income and in bubble it goes to 6 or . . . 7.5 (times).
So I wonder when the bubble is going to burst! That's the hard part to predict. Then we may find we have got the Governments we deserve!